<template>
    <div class="todo-container">
    <div class="todo-wrap">
      <Header 
      @publicNewTodo="publicNewTodo"
      />
      <Content :todoList="todoList" 
      @singleChecked = "singleChecked"
      @deleleSingle="deleleSingle"
      />
      <Footer
      :todoList = "todoList"
      @allChecked = "allChecked"
      @clearComplate = "clearComplate"
      />
    </div>
  </div>
</template>

<script lang="ts">
 import { defineComponent } from "vue"
  export default  defineComponent({
    name:'App',
    });
</script>

<script setup lang="ts">
/*
  在setup中引入组件是不需要注册的,可以直接在模板中使用
*/
import { nanoid } from "nanoid";
import { ref } from "vue";
import Header from "./components/Header/index.vue";
import Content from "./components/Content/index.vue";
import Footer from "./components/Footer/index.vue";
import type { todoListType,todoItemType } from "./App";


//1. todo的数据(状态提升)
const todoList = ref<todoListType>([
  { id: nanoid(), thing: "吃", done: true  },
  { id: nanoid(), thing: "喝", done: false },
  { id: nanoid(), thing: "住", done: false },
]);

// 2.接收content组件传递单个选中项的自定义事件函数
const singleChecked = (index : number)=>{
  todoList.value[index].done = !todoList.value[index].done
};

// 3.接收content组件传递单个删除的自定义事件函数
const deleleSingle = (index : number)=>{
  todoList.value.splice(index,1)
}

// 4.接收Header组件传递的新todo
const publicNewTodo = (newTodo:todoItemType)=>{
  todoList.value.unshift(newTodo)
}

// 5.接受footer组件全选的自定义事件回调函数
const allChecked = (checkType:boolean)=>{
  todoList.value.forEach((item)=>(item.done = checkType))
}

// 6.footer组件删除所有已完成的数据的自定义事件回调函数
const clearComplate = ()=>{
  todoList.value = todoList.value.filter((item)=>!item.done)
}
</script>

<style lang="scss">
  /*base*/
body {
  background: #fff;
}
.btn {
  display: inline-block;
  padding: 4px 12px;
  margin-bottom: 0;
  font-size: 14px;
  line-height: 20px;
  text-align: center;
  vertical-align: middle;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2),
    0 1px 2px rgba(0, 0, 0, 0.05);
  border-radius: 4px;
}
.btn-danger {
  color: #fff;
  background-color: #da4f49;
  border: 1px solid #bd362f;
}
.btn-danger:hover {
  color: #fff;
  background-color: #bd362f;
}

.btn:focus {
  outline: none;
}
.todo-container {
  width: 600px;
  margin: 0 auto;
}
.todo-container .todo-wrap {
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
}
</style>
